비아그라 - 개요
VIAGRA includes sildenafil, which is the same medicine located in A different drug identified as REVATIO. REVATIO is utilised to treat a rare sickness identified as pulmonary arterial hypertension (PAH).Sildenafil boosts the outcome of NO by inhibiting phosphodiesterase form 5 (PDE5), which happens to be accountable for degradation of cGMP during t